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| Torsion
scale Pic PH SC 61 Made by Johann Brigge, Germany. The dial show the weight up to 20 mg in steps of 0,2 mg.
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| The arrestment wheel ! |
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| The load hook with fine adjustment ! |
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| A view inside ! |
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| See the fine spring which pre weigh the small beam. Copper spring, brass technique ! |
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| The Arrestment |
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